2002 DODGE INTREPID 2.7, HAVE TO PUMP TO START, ONCE STARTED WILL NOT REV UP WITHOUT CUTTING OUT. FOUND DATE ON VALVE COVER 06-18-03 IF ENGINE HAS BEEN SWAPPED COULD IT BE CRANK SENSOR?


Sounds more like fuel pump. No residual pressure for start up and high resistance in motor windings to keep it pumping.
Get a pressure tester hook it up to schrader valve on fuel rail before cranking and measure residual pressure. Next crank engine and let it run and see what running pressure is. Compare it to spec's.
Quest way to check pump is to put key in ignition turn just to on position .You should hear the pump buzz.


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